best quality 20# steel imported diamond hollow core diamond drill bits
USD $50 - $1,000 /Piece
Min.Order:1 Piece
Zhengzhou Partner Electronic Technology Co., Ltd.
best quality 20# steel imported diamond hollow core diamond drill bits
1. Dia 23mm~350mm
2. Used for concrete and stone
3. High quality
4. Timely delivery
Specifications
Unit: mm | ||||||||||||
(D)Outside diameter | 23 | 27 | 30 | 32 | 34 | 36 | 38 | 40 | 46 | 51 | 56 | 63 |
(L) Effective length | 340 | 340 | 340 | 340 | 340 | 340 | 340 | 380 | 380 | 380 | 380 | 380 |
(T) thickness of segment | 3.6 | 3.6 | 3.6 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.75 | 3.75 | 3.75 |
(X) height of segment | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 |
Unit: mm | ||||||||||||
(D)Outside diameter | 66 | 71 | 76 | 82 | 90 | 96 | 102 | 108 | 110 | 112 | 116 | 120 |
(L) Effective length | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 |
(T) thickness of segment | 3.75 | 3.75 | 3.75 | 3.75 | 4 | 4 | 4 | 4 | 4 | 4 | 4.2 | 4.2 |
(X) height of segment | 8 | 8 | 8 | 8 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 |
Unit: mm | ||||||||||||
(D)Outside diameter | 125 | 127 | 132 | 150 | 160 | 180 | 200 | 219 | 245 | 274 | 300 | 350 |
(L) Effective length | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 |
(T) thickness of segment | 4.2 | 4.5 | 4.5 | 4.5 | 4.5 | 4.8 | 4.8 | 4.8 | 4.8 | 5 | 5 | 5 |
(X) height of segment | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 |
Other specifications and size are available upon request |
Main products
a, Thin walled drill bits
b. PDC drill bits
c. Impregnated core drill bits
Features of our products
a. Stable quality: We adhere to the implementation of ISO9001:2008, Strict quality control is doing in every aspect of production. Customer satisfaction is our goal.
b. Full range of products: Q series, T2 series drill bits etc.
c. Delivery timely: We have annual production capacity of six hundred thousand pieces and have the professional group to provide the higher and all day services to make sure the customer can contact us at any time and make sure to ship the goods timely.
We Zhengzhou partner are specialized in all kinds of diamond core drill bits. And we always adheres to " customer oriented, reputation first, leading quality and first-class service" for the business philosophy.
Welcome to your inquiry